
  body {
    margin: 0;
  }


header,
menubar,
toolbar,
sidebar{
    display: block;
}

menuitem,
toolitem{
    display: inline-block;
}

header{
    min-height: 40px;
    background-color: rgb(66, 201, 235);
}
header div.head-title{
    line-height: 40px;
    display: inline-block;
    color: white;
    font-size: 18px;
}

menubar{
    background-color: #efefef;
}
menuitem{
    padding: 4px;
    cursor: pointer;
}
menuitem > menuitem{
    display: none;
}
menuitem:hover,
menuitem:active{
    background-color: rgb(62, 180, 209);
}

menuitem:hover > menuitem,
menuitem:active > menuitem{
    display: block;
}


